On Sun, Sep 16, 2007 at 01:52:59PM -0600, Matthew Wilcox wrote:> I don't think it would be that complicated. We could just delay probing> for mmconfig until after the pci bus probes are done. No changes to> other architectures needed.

Indeed. Seems like it's a way to go.

> I'm really disappointed with mmconfig. Here was a great chance to get> rid of all the sucky performance problems of the past, and BIOS writers> and chipset designers have fucked up the implementation so much that> it's now the ugliest method for getting to pci config space. And it's> the *only* method of getting to extended config space.

Same feeling...

Fortunately, it seems that we don't access the extended config spaceduring bus probe.